1) Calculate the vapor pressure of a solution containing 24.5 g glycerin (C3H8O3) in 135 mL of water at 30.0 °C. The vapor pressure of pure water at this temperature is 31.8 torr. Assume that glycerin is not volatile and dissolve molecularly (that is, it is not ionic), and use a density of 1.00 g/mL for the water.
2) identify the solute with the highest van’t hoff factor
3) Calculate the heat needed for converting 10.0 g of ice at -25.0 C to water at 80.0 C.